Automatic machine for forming, cutting and depositing filled baked goods



July 27, 1965 E. J. ROTH 3,196,810

AUTOMATIC MACHINE FOR EORMING, CUTTING AND DEPosITING FILLED BAKED GooDs Filed July 26, 1963 11 Sheets-Sheet 1 July 27, 1965 E. J. ROTH AUTOMATIC MACHINE FOR FORMING, CUTTING AND DEPOSITING FILLED BAKED GOODS 11 Sheets-Sheet 5 Filed July 26, 1963 INVENTOR ERNEST J. ROTH HTTOENEY .July 27, 1965 E. J. ROTH AUTOMATIC MACHINE FOR FORMING, CUTTING AND DEPOSITING FILLED BAKED GOODS 11 Sheets-Sheet 4 Filed July 26, 1963 Z Il 7 w 6 H 2 0l Z u, 2 p f mm e Y NR N E QJ r f. MII V E .7 2 Z Q70 Z 7 T |W|||| |.l|| WIWI ,I T l H|||| |J| m Q n 9 f u, a. -9L/ow w N I., .7 2,/ R 2 f5-1--. H 5 E w w ...ifm a w w f w 4 lm j un Ww- 3 2 f 9 H 5 1 q m Z IHTIH Tf n A0 IL ||l| 6 Z LII IJ 4 7 m vw 6 H d, Z .m 7 z f 4.' 7 Mf W 0l \(Z v l N l 2 I N 4/ 7 @lo mm W lh 5/ 2 3 mw 6 H H Z In J 7 5w 7 a a 2 Jh 4/ J/ e0 4 3 .d Q 4l m Z Z do 44H 4) 4/ 7 ,2 w nl.. 2d wl ,V f 4 No m ww M July 27, 1965 E. J. ROTH 3,196,810

AUTOMATIC MACHINE FOR FORMING, CUTTING AND y v DEPOSITING FILLED BAKED GOODS 4 Filed July 26. 1963 11 Sheets-Sheet 5 575427 l; ,ga 28 g2 RNEST J ROTH 81%.

FPTTRNEV July 27, 1965 E. J. ROTH 3,196,810 AUTOMATIC MACHINE FOR FORMING, CUTTING AND -k DEPOSITING FILLED BAKED GOODS Filed July 2e, 196s 11 Sheets-Sheet .6

r 9 INVENTOR ERNEST J. ROTH [i- BY' l ij- HTTONEY July 27, 1965 E J ROTH 3,196,810

AUTOMATIC MAcHINE' FR FORMING, CUTTING AND DEPosITING FILLED BAKED GooDs Filed July 26, 1963 11 Sheets-Sheet 7 TUHH AIll NIH] I, 0 HI Q INVENTOR.

ERNEST J. ROTH July 27, 1965 E. J. ROT AUTOMATIC MACHINE FOR FORMING. CUTTING AND DEPQSITING FILLED BAKED GOODS Filed July 26, '1963 11 Sheets-Sheet 8 I .lCL

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2-- r 2233 24 E 1: I 244 WW2 'j 71 "if ff hl L Pgrf "E i: 72 l n@ n IIIII ZZ l lll' XMM- 'Hmm INVENTOR. ERNEST J. ROTH 21 BY HTTORNEY July 27, 1965 E. J. ROTH AUTOMATIC MACHINE FOR FORMING, CUTTING AND DEPOSITING FILLED BAKED GOODS 11 Sheets-Sheet 9 Filed July 26, 1963 INVENTOR. ERNaST J. ROTH ATTORNEY July 27, 1965 E. J. ROTH AUTOMATIC MACHINE FOR FORMING, CUTTING AND DEPOSITING FILLED BAKED GOODS 1l Sheets-Sheet 10 Filed July 26, 1953 INVENTOR ERNEST J. ROTH A ORNEY ETP `fuly 27, 1965 Filed July 26, 1963 E. J. ROTH 3,196,810 AUTOMATIC MACHINE FOR FORMING, CUTTING AND DEPOSITING FILLED BAKED`GOODS 1l Sheets-Sheet 1l Tf1 1E. 226

INVENTOR. ERNEST J. ROTH ATTORNEY Ernest Jl. Roth, Englewood, NJ., assigner to .loe Lowe @orinar-ation, New Yori-r, NYY., a corporation ott llle aware Filed .luly 26, i963, Ser. No. 297,34@ S lairns. (Cl. 167ml) The present invention relates generally to a machine for the production of iilled baked goods, and it has particular relation to an improved machine for extruding a combined dough and ilavoring material in desired shapes, which extrusions are cut uniformly and intermittently deposited accurately and automatically into pans moving continuously along a receiving conveyor.

The most commonly lllled bakery product of the type described is the cinnamon bun or roll wherein the cinnamon flavoring extends entirely through and between spiral convolutions of the dough. Obviously, any other shape could be produced by changing the shape of the xtrusion dies. Most of such baked goods are presently made by hand, and the operation is expensive, inelcient from a labor standpoint and unsanitary since each individual formation must be handled several times in the course o its manufacture.

@ne machine is presently on the mar tet for making cinnamon buns in which the dough is injected with spaced globs of iluid liavoring material, and the combination is extruded, cut and deposited into pans in which the products are to be baked. The pans are moved intermittently along a conveyor, which operates under the extrusion nozzle, and the movement of the pans is synchronized with the cutter. This machine has to be custom built for each operation since the pan conveyor is designed to lit the pans of the manufacturer and the intermittent pan conveyor is built to operate with a single size pan.

With the present invention the disadvantages hereinabove set forth have been obviated, and there is provided a machine for making such baked goods, which is capable of manual adjustments without the need of a skilled mechanic, special tools or the services of a maintenance man, to operate with dillerent sizes of pans and different spacings of the deposited raw dough forms.

An object of the invention is the provision of a machine oi the class described which is capable of receiving and handling baking pans of various widths and/or depths.

Another object of the invention is to provide a machine of the class described with visual selector means whereby the spacings of the newly formed extrusions can be changed or regulated to lit the standard baking pans currently on the market.

Another object of the invention is the provision of a machine by which filled baked goods, such as cinnamon tial savings in labor.

Another object of the invention is the provision of a machine in which the intermittent forming of the extrusions is synchronized with the continuous movement of the pans, which results in an increased production over macli: es requiring an intermittent feeding of the baking pans.

Another object of the invention is the provision of a machine by which llavor lled dough extrusions, such as cinnamon buns, can be formed, cut and panned auto` matically at a very substantial savings in labor.

A further object or" the invention Vis to provide an eflicient, economical and inexpensive machine on which ilavor iilled dough extrusions are formed, cut and deposited into pans for baking without requiring handling.

Another object of the invention is the provision of an automatic dialing system whereby the cutting times of the extrusion ce" be changed at the will of the operator to meet the requirements of diilerent sizes of baking pans.

Other and further objects and advantages ot the invention reside in the detailed construction of the several parts, which result in simplicity, economy and elficiency, and which will be apparent from the following description, wherein a preferred embodiment of the invention is shown, reference being had to the accompanying drawings, forming a part hereof, wherein like numerals indicate like parts, in which:

FEGURE 1 is a side elevational view of the machine, with parts being broken away to better Show its operating ni chanism;

FlGURE 2 is a fragmentary horizontal sectional View, on an enlarged scale, of the conveyor drive mechanism and hydraulic system, the same having been taken along the li le 22 of FGURE 1, looking in the direction of the arrows;

FlGURE 3 is a fragmentary vertical sectional view, on an enlarged scale, of the conveyor drive mechanism, the same having been taken along the line .3*3 of FI"- URE 2, looking in the direction of the arrows, and showing he details of one of the cani operating mechanisms;

l is a vertical sectional view of the conveyor drive mechanism and hydraulic system, the sai e having been taken along the line l-d of FGURE 3, looking in the direction of the arrows;

FEGURE 5 is a schematic View of the hydraulic system which operates the cutter mechanism;

FlGURE 6 is a vertical sectional view of the means for adjusting the rails which support the baking pans moving under the cutter mechanism, the same having been taken along the line o-o of FIGURE 1, looking in the direction of the arrows;

FlGURE 7 is a plan View of the rail adjusting means shown in FlGURE 6, the Same having been taken as viewed trom tie arrows 7;

FlGURE 8 is an enlarged vertical sectional View of the conveyor driving and cutting mechanism, the same having been taken substantially along the line S--S of FlGURl l, looking in the direction of the arrows;

PlGURE 9 is a vertical sectional view of the cutter mechanism, the same having been taken substantially along the line 9-9 of FlGURE 8, looking in the direction of the arrows;

FiGURE 10 is a horizontal sectional view ofthe cuttermechanism shown in FGURE 9, the same having been taken substantially along the line 1li-dll thereof, looking in the direction of the arrows;

lllGURE l1 is a schematic drawing, showing the electrical wiring system of the machine;

FlGURE 12 is an enlarged detailed view of the peripheral cam track of one of the cams used to control the cutter mechanism, the cam illustrated in this view being a different cam from the cam shown in FIGURE 3;

FlGURE 13 is a vertical view of the cutter mechanism, showing the arrangement of its several extrusion tubes;

FEGURE 14 is a top plan View of a baking pan filled with extruded pieces inthe arrangement resulting from use or the earn track shown in FEGURE l2 for operating the cutter head;

FGURE l5 is a vertical elevational view of one of the extruder tubes of the cutter mechanism, illustrating the position of the davor injecting nozzle therein;

PM2-URE 16 is an elevational View of one of the cut entrusions from the .tube shown in FGURE l5;

FlGU-E i7 is a fragmentary vertical sectional view of the extrusion tube shown in FGURE 15;

FIGURE 18 is a cross-sectional View of the extrusion tube shown in FIGURE 17, the same having been taken substantially along the line 18-18 thereof, looking in the direction of the arrows; and I FIGURE 19 is a top plan view of the extrusion shown in FIGURE 16, the saine showing the spiral shape of the fiavoring material within the dough base.

T he mac/inte Referring now to the drawings and particularly` FIG- URES 1 and 6, there is shown a side elevational view of a machine embodying the invention. The machine has a box-like frame structure consisting of a rectangular top frame member 2t?, having spaced side rails 21 and 22 suitably connected transversely at longitudinally spaced intervals by tubular members 23, and a rectangular bottom frame structure 24 having spaced side rails 25 and 26 suitably connected transversely by tubular members 27. The two frame structures 2t? and 2d are vertically spaced on a series of legs 23, and are provided with Suitable conventional supporting castors 29 for making the machine movable. The castors 29 are capable of .individual adjustments for leveling and locking the machine in a fixed position.

The pmi conveyor Referring now to FIGURES 6 and 7, there is mounted on the top main supporting frame structure 2t? a pan coriveyor 60, consisting of a pair of laterally spaced and longitudinally extending angular tracks or rails 27 and Zd', which are mounted adjustably both vertically and horizontally, as hereinafter to be described.

The machine has mounted intermediate its ends and below the rails 27 and lf3 a pair of longitudinally spaced transversely extending rods 31 and 3?., which are suitably journalled in spaced bearing members 33 and 3d. Each rod 31 and 32 has a pair of spaced threaded portions 35 and 3d. The threaded portion 35 has right hand threads and the threaded portion 36 has left band threads. The rods 31 and 32 each has a sprocket wheel 37 keyed adjacent the outer end of the threaded portion 35. ri`he sprocket wheels 37 are in longitudinal alignment. An endless driving chain 41 is entrained over the spaced sprocket wheels 37. The rod 31 has the end adjacent the sprocket wheel 37 extending through its bearing 33 and beyond the side rail 21. It has a wheel 39 keyed thereto, which is provided with a handle dit for rotating the same.

Each rod 31 and 32 has a pair of spaced blocks 42 and 43 mounted thereon through a horizontally threaded aperture. One block is mounted on each threaded portion 35 and 36. When the rods 31 and 32 are rotated, by turning the handle di), the blocks 42 and 43 will be moved towards and/or away from one another, depending upon the direction the handle 4i) is being turned.

Each of the blocks 42 and 43 also has a threaded aperture extending vertically therethrough for threadingly receiving a vertically extending threaded rod and 46, respectively. Mounted threadingly on each rod 44 and 46 is an inwardly extending arm 43 and 49, respectively. The spaced rails 27 and 2S' are welded to the top inwardly extending ends of each pair of arms 48 and 49, respectively.

Each vertically extending rod 44 and Li has a reduced upper-end. A sprocket wheel 51 is keyed to each of the rods 44, and a sprocket wheel 52 is keyed to each of the rods d6. A chain 54 is entrained over the spaced sprocket wheels 51, and a second chain 56 is entra-ined over the spaced sprocket wheels 52. The reduced upper ends of each rod fz-4 and 46 has an enlarged head 57 mounted tixedly thereon, which serves as a manipulating handle for turning the same manually. The chains 54 and 56 each lias a U-shaped channel member 5? mounted thereunder and extending through out the length thereof, as best shown fragmentally in FIGURE 7, to prevent CII sagging. By turning manually one of the enlarged heads 57 at either ends, it is possible to raise and/ or lower each side section of the rails 27 and 28 independently since the chain 54 causes the longitudinally spaced arms 48 to be moved vertically together. The chain 56 moves the arms i9 in like manner. By rotating the handle 46, the wheel 39 causes the rod 31 to rotate, and its connecting chain 41 causes the rod 32 to be correspondingly rotated. In this manner the tracks 27 and 28 may be moved simultaneously towards each other or away from each other, depending upon the direction of rotation of the handle 49.

The pan conveyor 69, which moves the baking pans 61 along the tracks 27 and 2S', consists of a pair of longitudinally spaced transversely extending shafts 62 and 63 mounted one adjacent each end of the machine (see FEGURES 1 and 2). The shaft 62 has a pair of spaced sprocket wheels 65 and 66 keyed thereto, and the shaft 63 has a similar pair of spaced sprocket wheels 68 and 59 keyed thereto. A chain 71 is entrained over the longitudinally aligned pair or" sprocket wheels 66 and 69, and a second chain 72 is entrained over the longitudinally aligned pair of sprocket wheels 65 and 63. The chains 71 and 72 are provided underneath with angular supporting strips 743, which extend throughout their lengths and prevent not only sagging but dripping of any lubricants used on said chains. The chains 72 and 72 each have a series of upright fingers 75 mounted thereon in any suitable maniier and spaced longitudinally and oppositely for engaging the rear or trailing edge of the baking pans 61 to move them forwardly along the tracks 27 and 23.

Referring now to FIGURES 1, 2, 3 and 7, there is shown the driving mechanism for the pan conveyor 6) and the timing cams (hereinafter to be described) for cont-rolling the operation of the cutter mechanism. As best shown in FIGURE 2, the driving power is secured from an electric motor 81, which is equipped with a conventional friction brake 82 to prevent said driving mechanism for the pan conveyor 6) 'and timing cams controlling the cut-ter mechanism from moving after the current to the electric motor 81 is cut off. The motor 31 is mounted on an adjustable base .83. The base 83 is movable by manipulation of the handle 84. The motor 81 is connected to a conventional reduction gearing unit 85 through a variable pulley 87, .belt 88 and pulley S9. The lreduction gearing unit 85 has two output or drive shafts 91 and 93 (see FIGURE 2). The drive shaft 91 has a keyed sprocket wheel 94, which drives a chain ,6 entrained over a second sprocket wheel 97, which is keyed to ashaft 98. The shaft 98 is suitably journalled in end bearing members 161 and 103 mounted on suitable supports forming a part of the frame structure 24.

The drive shaft 9,8 carries a series of spaced pairs of timing cams -106-107, 10S-169 and 111-112 mounted xedly thereon. These timing cams will rotate continuously as long as the motor 81 is running. It will be noted in FIGURES 2 and 3 that each timing cam is provided with a conventional limit switch 117. Each switch 1217 is provided with -an outwardly extending bifurcated arm 11S, which, in turn, has at Aits free outer end a roller or cam follower 119 (see FIGURE 3). Each cam follower 119 engages the peripheral carri track 121 of its contiguous cam. When the cam follower 119 reaches each of the peaks 122 on ythe peripheral cam track 121 of the cam 107 (see FIG. 3), it will be noted the .arm 118 is moved into the position shown in FIGURE 3, -If its switch 117 is being energized `with electricity from the selective dial, the cutter mechanism will be operated by said cam. The lengths of the valleys `123i of the peripheral cam track 121 control the time between consecutive operations of the cutter mechanism tand the longitudinal spacing between consecutive transverse rows of deposits.

The shaft 93 `of the reduction gearing unit E25 has a fixed sprocket wheel 126, which drives a chain 127. The opposite end of the chain 127 engages a sprocket wheel i929, which is keyed to a shaft i311 extending transversely of the upper frame structure Ztl and journalled in bearings i322 and E33 mounted on the side rails 2l and 22 thereof. The shaft -llill has a second sprocket wheel l36 keyed thereto, which drives a chain 137. The chain i137 extends longitudinally forwardly of the machine and drives a sprocket wheel lid-l keyed to the shaft e?. located at the forward or discharge end thereof (see FIGURE 2). This arrangement provides a cont-inuous drive for the conveyor chains 7l and 72 when the motor Si is operating. The `shaft 133i `also has keyed thereto a ratchet assembly, which permits adjustment of the pan conveyor ed while -i-t is in operation. This may be accomplished by grasping manually the peripheral edge of the wheel M3 forming a part of said ratchet assembly, which has an enlarged hand gripping bead ldd, for turning it in the direction in which it is rotating on its shaft while it is in operation. rlhis ratchet assembly forms no part of the present invention, but is shown, described and claimed in my co-pending application Serial No. 177,863, led March 6, 1952, now `atent No. 3,154,187.

The doug/t tank Referring .again to FIGURE l, a large dough tank l5@ is mounted on a supporting structure tt, which is, in turn, suitably mounted on top of legs l5?. on the frame structure Ztl. The top of the dough tank l5@ is equipped with a conventional pressure sealing removable cover d adapted to be released and/or locked into a xed position by turning a suitable manipulating wheel T156. The tank Edil carries a conventional pressure release safety valve i557.

A pneumatic pressure system is connected to an outside source `of `supply (not shown) through a pipe line lib, which leads into a conventional air filter 159. The air filter d5@ passes the liltered air into a pipe line lol, which, in turn, has its opposite end connected to an air manifold E62. The air manifold lo?) has three outlets. One outlet is connected to a feed pipe left, having a pressure regulating valve too and pressure gauge i617. The feed pipe lofi, which leads into the dough tank l5@ through the sidewall adjacent to its top has a cut-off valve i655. The second manifold outlet has la pipe le@ leading to a manifold pressure gauge l'l. The third manifold outlet has a `feed pipe line l?, equipped with a pressure regulating Valve i713 and pressure gauge 174i. The pipe TF2, leading into the flavor tank lil@ through the sidewall adjacent to its top, has a cut-oil valve 176.

The bottom of the dough tank l5@ (see FlGURE 9) slopes or converges, as indicated at ldl, and its reduced end is provided with clamping bars i822. The bars 132 attach removably a restricted throat member i553 thereto by means of bolts 137. lExtrusion tubes or dies .ld are, in turn, removably secured to the lower end of the throat member 1133 by a series of spaced bolts 189. The lower or outer end of each die tube libe leads into a cutter 'head mechanism i9@ hereinafter `to be more ful-ly described.

Tlie fiar/0r tank rThe tlavor tank 18h, which is shown in FGURE l as being slightly smaller in size than the dough tank 15d, is likewise suitably mounted on a supporting structure 11931 having legs .im mounted on the top of the main frame structure 2li. The tank llll is provided with a conventional releasable pressure sealing top cover plate ibi, which is secured by wing bolts and nuts Mrd. A plate l97, having a handle E93, is provided as a floating follower 'within the tank lllitl and completely covering the top surface of the avoring material contained therein. This is essential because the liavoring material in the tank lh is forced out by pneumatic pressure obtained through the pipe line E72, and, at certain viscosities and cons-istencies, the pneumatic pressure without such a follower plate tends to penetrate and form cavities in the t5 top surface of such iiavorng materials with resulting irregular deliveries or none at all.

The bottom of the tank lill@ is concave, as indicated at Ztll, and has a single axial outlet Elli, which is connected to a pipe Zilli equipped with a series of spaced sanitary couplings for easy dismantling for cleaning purposes. The pipe conveys the iiavoring material forced from the iavor tank 1S@ into a connecting U-shaped manifold Referring now to GURE 10, the manifold 2% consists of a U-shaped end member 2&7, which is connected to the pipe Edd centrally of its ends 2&3 and 2li?. The end of the member Ztl is connected through a sanitary coupling 2id to a straight section of pipe Ztl, which is closed at its outer end by a sanitary cap 2,32. The pipe 2 passes along one side of the row of spaced die tubes l leading from the dough tank ligt), and through a series of spaced sanitary fittings 2id. The fittings 22d provide a pipe line 2id leading one each to said die tubes The opposite end 2li? of the member Eil? is likewise connected by a sanitary coupling titl to a parallel section or" straight pipe 2l@ leading along the opposite sides of the row of spaced dic tubes "f The pipe line we. 2li@ is closed at its outer end by a sanitary cap 221. A series of spaced sanitary fittings 2,22 are connected through the pipe lines 233 one each to the opposite sides of said die tubes Obviously, when pressure is exerted on the follower plate i9?, the lavoring material in the lavor tank ltil is forced out through its bottom, through the connecting pipe line llt to the member .2@7, where it is divided into two streams, one each passing into the pipes and M9. ln this manner a stream of flavoring material is delivered to each side of each of the dough die tubes ld from opposite sides thereof into the axially mounted davor forming die tubes Referring now to Fifi-URE l5 through i9, there is shown an enlarged diagramrnatical view of the detailed arrangement of the combined die tubes ld and 23d, wherein the raw dough encircles and encloses the flavoring material 234 from which combination the biscuit or cake is formed. The present embodiment shows merely tour die tubes i3d, but it is understood these may be increased or decreased in number as desired.

in FIGURE l5, the dough die tube is illustrated with its flavor die tube 23@ suitably mounted axially therein with one of the lavor inlet openings being shown passing through the die tube lilo.

FlGURE i6 shows a side elevational View of a single raw ldough formation 233 after the saine has been severed from the diV tube lille.

lFlGUlE 1 7 shows the combined die tubes ld and 23@ of FlGURiE l5 with portions being broken away and/ or cut away to better illustrate how the raw dough entering at the top, is forced over and around the spiral die tube 239 centrally mounted in spaced relation therein for introducing the iiavoring material into tie raw dough 23C, whereby, when both materials reach the disdiarge ends of their respective forming or extrusion dies le and 23d, they are combined into the form of a single continuous extrusion layer of dough 233 having a spiral formation of iiavoring material formed therein and extending substa nally axially thereof. A top plan view of the bun or biscuit formed by the severed dough piece 23S is shown in FLC;- URE 19.

The cutter Izena irteclmnism Referring now to FGURES 8, 9 and ld, there is shown the details of the cutter head mechanism ldd, which is mounted directly below and contiguous to the discharge ends of the series of spaced die tubes 2% leading downwardly from the dough tank figli.

The cutter head mechanism i9@ comprises a large ilat metal plate Zlib, having a series of spaced vertical apertures Zeil therethrough. A series of spaced squared shaped plates 242 are mounted above the plate 2dr-3, one

(see FluURE 9) consisting of an outer each encircling the lower end of the die tubes 186. These plates 242 are welded or otherwise secured edly to the plate 240 for anchoring the die tubes 186 in alignment with the apertures 241 therethrough. An intermediate narrow bar 243 and wider bar 245 are bolted to the underside of the front and back edges of the plate 240, forming a guideway for receiving the sliding cutter blades 244 and 246, as best shown in FIGURE 8. Each cutter blade 244 and 245 has a reduced inner edge 247 (see FIGURE 9). The edges 247, when brought quickly together, will pinch ofi the extrusion of dough 236 being discharged from the lower ends of the die tubes 186.

The outer end of the cutterblade 244 is connected by a pin 249 to a bifurcated arm 251, whose opposite end is connected, in any suitable manner, to the projecting end 252 of a piston rod extending outwardly of a cylinder 254 (see FiGURES 9 and l0). The outer end of the cutter blade 246 is likewise connected by a pin 256 to a bifurcated arm 257, whose opposite end is connected, in any suitable manner, to the projecting end of a piston rod 258 extending from a piston 259 within a cylinder 2-51. The hydraulic cylinders 254 and 261 are suitably anchored to the main frame structure at their outer ends, as indicated at 263.

The hydraulic system The hydraulic system for operating the cutter head mechanism is shown schematically in FIGURE 5.

It consists of an electric motor 278, which through a llexible coupling 271, is connected with a hydraulic pump 272. The pump 272 secures its hydraulic duid from a suitable reservoir 274 through its connecting pipe line 276. The pump 272 discharges its hydraulic fluid through its outlet pipe line 277, which delivers it to a spring return four-way valve 278 of conventional construction and which is operated by a solenoid 281. The four-way valve 278, in its normal position, is de-energized. The four-way valve 278 delivers the hydraulic luid under pressure through a pipe line 282 to a conventional ilow divider 283. The ow divider 283 will insure equal distribution of the hydraulic iiuid to each of its connecting pipe lines 286 and 287. The pipe line 286 carries its hydraulic uid to the back end of the cylinder 254, and thereby forces its piston 253 outwardly, whereupon its piston rod 252 moves its attached cutter blade 244 inwardly towards the cutter blade 246. The pipe line 287 carries its hydraulic iluid to the back end of the cylinder 261, and forces its piston 259 outwardly, whereupon its piston rod 258 will force its attached cutter blade 246 inwardly towards the cutter blade 244. The limits of the stroke of each cutter blade 244 and 246 is at their exact meeting point in the center of the die tubes 186, whereupon the blades 244 and 246, when meeting, pinch off the combined dough extrusion 236 into individual pieces 238, as best shown in FIGURE 16. The cutter blades 244 and 246 are normally held in a closed position, preventing extrusions 236 from the die tubes 186 as long as the hydraulic pump 272 remains in operation.

In order to open the cutter blades 244 and 246 to permit further eXtrusions, the solenoid 281 of the valve 278 must be actuated electrically through its controlling cam. When the valve 278 is so actuated, the hydraulic tluid will be forced from the four-way valve 278 into the pipe line 291, then into the pipe lines 292 and 293, leading respectively to the inner ends of the cylinders 254 and 261, causing their pistons 253 and 259, respectively, to be forced backwardly or inwardly to withdraw the cutter blades 244 and 246. The pipe line 295, leading from the four-way valve 278, is a by-pass pipe line, owing back into the reservoir 274.

T he schematic wiring diagram Referring now to FIGURE 11, there is shown sc ematically the wiring diagram for the various electrical components embodied in the machine. This schematic 8 drawing is in accordance with the electrical'for'mat ap-Y` proved by the Joint Industrial Congress (I. I. C.) Electrical Standards for Industrial Equipment, as adopted and revised March 2027, 1957.

The machine receives its current from an outside source of supply not shown, and is equipped with a main operating switch 298, having a start button 292 and stop button 294, through which the incoming wires 381, 392 and 393 are energized.

The motor 27 0, driving the pump 272 for the hydraulic system, is provided with its own circuit from the wires 381, 302 and 303 through the wires 306, 387 and 308. The wires 3%, 307 and 368 pass through a manual control switch 316, which has a starter button 311 and stop button 312.

rl`he pan conveyor motor 81 receives its electrical energy through the wires 314, 315 and 316. The wires 314, 315 and 316 pass through a conventional relay 317, having series of spaced contacts 318, 319 and 320, respectively, and are then connected to the main circuit wires 301, 392 and 383, respectively. The friction brake 82 is energized through the wires 322 and 323, which are, in turn, connected to the wires 314 and 315, carrying current to the motor 81, which also drives the cams 186, 107, 1618, 109, 111 and 112.

A wire 326 connected with the main circuit wire 363 leads into a switch 327, having a stop button 329 and a starter button 331. The stop button 329 has a wire 332 connecting it to one side of an electric contact 333 of the relay 317. The starter button 331 is likewise connected to the electric contact 333 of the relay 317 through the wire 332. The opposiee side of the relay contact 333 has a wire 334 passingthrough the opposite side of the starter button 331, which leads to the visual or dial selector switch 336. The dial selector switch 335 has six dial contacts 340, 341, 342, 343, 344 and 345, which are connected respectively to the micro-switches 117 for each of the cams 106, 107, 168, 109, 111 and 112. The line 334 has a line 348, which is provided with a single pole by-pass switch 349, connecting with the dial selector 336. This switch 349 enables the operator to cut out the cutter mechanism without stopping the pan conveyor 60. The line 348 passes through a second single pole switch 351 and is connected to one side of the solenoid 281 that operates the four-way valve 278 that, in turn, controls the operation of the cutter-head mechanism 190. The solenoid 281 has a line 352 which connects back to the main line 302 to complete its circuit. The switch 351 permits the operator to shut olf the current supplied to the solenoid 281 in order to stop the cutter 199 to check the weight ofthe dough extrusions 236.

A pilot light 366 has one side connected by a wire 361 to the wire 352 of the circuit which includes the solenoid 281. The opposite side of the pilot light 368 is connected by a wire 362 to the wire 334 in the circuit including the switch 327 and the cam selector dial switch 336. The wire 362 after connecting with the wire 334 is connected in series through a holding coil 363 and overload relay 364 to a wire 366 that, in turn, leads back to the main circuit wire 392. `Thus, the pilot light 36), holding coil 363 and overload relay 334 are energized whenever the starter button 331 is energized. The overload relay serves to protect the coil 363.

The schematic drawing also includes a wiring diagram for a compressor motor 37) in the event one is required to supply pneumatic pressure to the pipe line 158 in the event the plant where the machine is installed does not `lave a pneumatic pressure system. The motor 370 is shown connected by the wires 371, 372 and 373 through a switch 374, having a starter button 376 and stop button 377, to the main circuit wires 381, 302 and 303, respectively. However, in the present embodiment, no compressor motor 370 is needed since pneumatic pressure is obtained from an outside source of supply through the pipe line 158.

The operation of the machine The basic operation of the machine is to combine two substances, one substance being a basic dough and the other substanct a Havering material, into a single extrusion that is discharged through a single die outlet into especially designed cutters, which will cut the combined dough extrusions 236 into uniform pieces 23d for gravitation into continuously moving baking pans el passing directly underneath the cutter blades Zell and 24d. The pans are fed manually into the machine by an operator,

moved synchronously through the machine by fingers 75 on the pan conveyor ed and taken oit' by a second operator. A third operator controls the starting and stopping of the machine, checks the weight of the cut pieces 233 and keeps the dough and flavor tanks l@ and i3d, respectively, supplied with dough 233 and flavoring material r2/l' lt will be obvious that the machine must be stopped trom time to time to refill the dough and flavor tanks with additional material. However, if a continuous operation is desirable, the machine may be equipped with two dough tanks and two flavor tanks, and they may be used alternately so that the machine will not have to be stopped for relling as required when the same is equipped with a single supply tanks. When one set ol tanks becomes empty, the operator can switch to the second set of tanks while he refills the first set of tanks.

The machine illustrated in the drawing has a maximum extruding capacity of approximately 150G pounds of dough and ilavoring material per hour. The number of individual pieces that can be cut will be dependent upon the size of the finished product to be made. The individual cuts or deposits may be varied in size from approximately 3A ounce to 3 ounces, depending upon the size of the die extrusion tube and cutters used on the machine. The cutter .head assembly, being removably secured to the bottom oi the dough tank, is readily removable for cleaning and/or changing of the die tubes for making another size or shape ot product. The weight of each ot the extrusions may be varied by changing the pressure supplied to the tops of the dough and flavor tanks.

lt will be appreciated that a very small extrusion will not drop as quickly as a heavier large extrusion, and, therefore, the speed of cutting must be adjusted accordingly. The machine, as previously described, is equipped with a motor dit, having a conventional adjustable base 83, variable speed pulley d'7 and belt 88. The motor 8l has a variable speed indicator Zeil, which is calibrated to indicate the speed of the motor in cuts per minute, and is driven by a chain Still connecting it to the drive shaft of the motor, as best shown in FIGURE l.

The operator in starting the machine first turns on the hydraulic system, by pressing the starter button Sill, which, in turn, will energize the electric motor 276, which drives the pump 272. Hydraulic pressure is now being supplied to the cutter head mechanism 19d.

By opennig the manual valves 155 and 75 in the air lines ldd and 172, leadingT to the dough tank lill and ilavor tank lill?, respectively, pressure will be exerted on the top of the dough in the dough tank b and on top of the follower plate ll' in the flavor tank lltlll. These tanks l5@ and lb@ are operable under pressures between 35 and 90 pounds per square inch. Each dough and flavor formula will require a different operating pressure for optimum performance, which must be determined by trial runs. The operator now turns the selector dial 336 to the cam operation desired, presses the starter button 331, which will start the electric motor 8l driving the reduction gear unit 8d, which, in turn, drives the pan conveyor de.

The selector dial 335 will cause the cam selected (which in FlGURE 1l is cam tl7) to energize the circuit to the solenoid itil, which controls the operation of the fourway valve 278 that controls the opening and closing ot the cutter blades 24d and 246. When the blades 2li-4 and 246 are opened, the combined dough and flavor will be extruded under pneumatic pressure, as indicated at 23d, from the bottom of each of the die tubes 319,6. The amount of the extrusion is obviously dependent upon the amount ot pneumatic pressure in the dough tank lf'tl and flavor tank ld, which pressures are always equal due to the air manifold M2 (such pressure can be regulated by the pressure regulator valves led, and can be determined by reading the pressure gauge lo?) and the length of time the cutter-blades 24d and 246 remain open, which time is determined and controlled by the respective cam selected.

Referring to FIGURE l2, ere is illustrated the peripheral cam track of the cam 69, which shows a series of peaks spaced at different circumferential distances, as indicated by the numerals 38E, 332, 3%, T134, 385 and 55. These peaks operate the cutting sequences, Le., when the cam follower passes over such peaks, its limit switch is energized opening said cutter-blades T44 and 2de momentarily, permitting the extrusion 25d shown in FIGURE 9, forming the bun 233 shown in the pan 6l. The concaved portions 3%, 389, 39d, 59h 3% and 393 of the peripheral cam track controls the periods during which the cutter blades 2li-4i and 2% remain closed, thereby preventing extrusions from the lower ends of the die tubes llc.

There is shown in FIGURE 13, the actual spacing arrangement of the die tubes ldd. it will be noted that they are in transverse alignment on the machine so as to deposit a transverse row of combined cxtrusions, now being indicated as dough formations 23S, in the pans 6l. lt will be noted that the die tubes ld are arranged in spaced pairs with a wider spacing at the center. To change this arrangement o the dough deposits 23S in a single row, it is necessary to change the die head on the machine.

Referring now to FlGURE 14, there is illustrated a pan dll completely filled with dough formations 23S provided by the cam 169 shown in FIGURE 12. The concave section of the cam track, indicated at 39h, controls the spacing of the deposits between pans indicated at 39th:. The section of the cam track, indicated by the number 391, controls the spacing between rows indicated by the number @la in FGURE 14. rhe section of the cam track indicated by the number 592 controls the spacing between rows indicated by the number 392:1. The section of the cam track indicated by the number 393 controls the spacing between rows indicated by the number 393e. The section of the cam track 33S controls the spacing between the rows indicated by the nurnber 332e. The section of the cam track controls the spacing between the rows indicated by the number 389e. The aforementioned illustration and spacings 332:1, 35911, 39de, 39M, 3%1 and 3936! apply only to the pan dl. Whenever a di'lierent size pan is to be used, the appropriate cam must be selected since each cam is designed for a single size pan.

lt will thus be apparent that with six different cams ldd, lllll, Mtl, ltlg, lll and llll, each having its own eccentric peripheral cam track, the operator may, merely by dialing, select a ditierent deposit spacing arrangement for the dough formations 233, which means that six different kinds and sizes of baking pans 6l. may be used in the machine by an unskilled operator. The width or space between the tracks 27 and 23 can be adjusted, as previously indicated, merely by rotating the handle lltl. In this manner the tracks 27 and 23' may be spaced to receive different widths of baking pans in use in the industry. It is not desirable to drop the severed dough pieces 233 too great a distance. Therefore, the adjustment controlled by the heads 57, as previously indicated, permit raising and/or lowering the tracks 27' and 2b with respect to the cutter-head mechanism 1%.

There is shown in FIGURE l below the conveyor el) i 1 and in vertical alignment with the cutting knives 244 and 246 a removable open-top container (dit), sitting on the frame structure 24, for catching severed extrusions 233 gravitating from the forming dies 134) when no baking pan 61 is on the conveyor ott in alignment therewith.

While I have shown and described but one orm which the invention may assume, it will be readily apparent to those skilled in the art that the invention is not to be so limited, but that various other and further modifications may be made therein without departing from the spirit thereof.

What I claim is:

1. In a machine of the class described having (a) a dough tank connected with a dough extrusion die,

(b) a iiavor tank connected with a flavor extrusion die,

(c) means for continuously forcing dough from said dough tank to said dough extrusion die,

(d) means for continuously forcing flavor from said flavor tank to said iiavor extrusion die,

(e) said lavor die being mounted in spaced relation within said dough die so that a composite extrusion will be formed and discharged having the avor surrounded with the dough,

(t) cutting means mounted adjacent the discharge end of said dough die for normally closing the same,

g) means for intermittently opening said cutting means for permitting a composite extrusion to be discharged therefrom and then severing the same to form an individual piece for baking into a inished product,

(h) a conveyor operating continuously below said cutting means for conveying along spaced rails a series of baking pans to receive the severed individual pieces of dough from said cutting means, and

(i) means including a visual selector and a series of different cams for synchronizing the intermittent operation of said cutting means with the continuous movement along said rails of said baking pans whereby different sizes of baking pans may be illed with properly spaced severed dough pieces.

2. In a machine of the class described having (a) a dough tank connected with a dough extrusion die,

(b) a iiavor tank connected with flavor extrusion die,

(c) means for continuously delivering dough from said dough tank to said dough extrusion die,

(d) means for continuously delivering avor from said davor tank to said avor extrusion die,

(e) said flavor die being mounted in spaced relation within said dough die so that a composite extrusion will be formed and discharged having the iavor surrounded with the dough,

(f) cutting means mounted adjacent the discharge end of said dough die or normally closing the same,

(g) means Jfor intermittently opening said cutting means including a series of synchronizable cams for permitting a composite extrusion to be discharged from said dough die and then severing the same to form an individual piece for baking into a rinished product,

(h) a conveyor operating continuously below said cutting means for conveying a series of baking pans to receive the severed individual pieces from said cutting means, and

(i) means for selecting one of said series of synchronizing cams for eiecting a different timing sequence for operating said cutting means, whereby different sizes of baking pans may be carried by said conveyor for iiling with properly spacing severed dough pieces.

3. In a machine of the class described having (a) a dough tank connected with a series of spaced dough extrusion dies,

(b) a llavor tank-connected with a corresponding series of spaced iiavor extrusion dies,

(c) means for delivering equal quantities of dough continuously from said dough tank to each of said dough extrusion dies,

(d) means for delivering equal quantities of flavor continuously from said flavor tank to cach of said flavor extrusion dies,

(e) said iiavor extrusion dies being mounted one each within said dough extrusion dies so that a composite extrusion will be discharged from each of said dough extrusion dies having the flavor substantially surrounded with the dough,

(f) cutting means mounted adjacent the discharge ends of said dough extrusion dies for normally closing the same,

(g) a conveyor operating continuously below said cutting means for conveying a series of baking pans to receive the severed individual composite extrusions,

(h) said cutting means being operated hydraulically and being opened and closed by means of a four way valve controlled by a solenoid,

(i) said solenoid being connected in an. electric circuit with a dial selector switch having a series of spaced contacts,

(j) said contacts being each connected in an electric circuit to one of a series of limit switches which are opened and closed by cams which rotate continuously when said pan conveyor is in operation,

(k) each of said cams being capable of effecting a different timing sequence of the open period of said cutting means whereby said selector switch may be changed by dialing to synchronize the cutting means with a particular size of baking pan being carried on said conveyor so that said pan may be filled with properly spaced rows of spaced composite dough extrusions.

4. A machine in accordance with claim 3, wherein said electric circuit has a switch connected with said dial selector switch to permit the operator to stop the cutting means without stopping the pan conveyor.

5. A machine in accordance with claim 3, wherein said electric circuit has a switch connected with said solenoid to permit the operator to stop the cutting means in order to check the weight of the individually severed dough extrusions.

References Cited bythe Examiner UNITED STATES PATENTS 970,370 9/10 Green 107-29 1,933,557 11/33 Kalvin IC7-14.1 X 1,961,661 6/34 Fuller 197-24 X 1,973,196 9/34 Baker 107-7.2 2,542,239 2/51 Engels et al. 107-29 2,590,823 3/52 Rhodes 1077. X 2,982,231 5/61 Fries IS7-1.4

WALTER A. SCHEEL, Primary Examiner.

CHARLES A. WILLMUTH, Examiner. 

1. IN A MACHINE OF THE CLASS DESCRIBED HAVING (A) A DOUGH TANK CONNECTED WITH A DOUGH EXTRUSION DIE, (B) A FLAVOUR TANK CONNECTED WITH A FLAVOR EXTRUSION DIE, (C) MEANS FOR CONTINUOUSLY FORCING DOUGH FROM SAID DOUGH TANK TO SAID DOUGH EXTRUSION DIE, (D) MEANS FOR CONTINUOUSLY FORCING FLAVOR FROM SAID FLAVOR TANK TO SAID FLAVOR EXTRUSION DIE, (E) SAID FLAVOR DIE BEING MOUNTED IN SPACED RELATION WITHIN SAID DOUGH DIE SO THAT A COMPOSITE EXTRUSION WILL BE FORMED AND DISCHARGED HAVING THE FLAVOR SURROUNDED WITH THE DOUGH, (F) CUTTING MEANS MOUNTED ADJACENT THE DISCHARGE END OF SAID DOUGH DIE FOR NORMALLY CLOSING THE SAME, (G) MEANS FOR INTERMITTENTLY OPENING SAID CUTTING MEANS FOR PERMITTING A COMPOSITE EXTRUSION TO BE DISCHARGED THEREFROM AND THEN SEVERING THE SAME TO FORM AN INDIVIDUAL PIECE FOR BAKING INTO A FINISHED PRODUCT, (H) A CONVEYOR OPERATING CONTINUOUSLY BELOW SAID CUTTING MEANS FOR CONVEYING ALONG SPACED RAILS A SERIES OF BANKING PANS TO RECEIVE THE SEVERED INDIVIDUAL PIECES OF DOUGH FROM SAID CUTTING MEANN, AND (I) MEANS INCLUDING A VISUAL SELECTOR AND A SERIES OF DIFFERENT CAMS FOR SYNCHORIZING TTHE INTERMITTING OPERATION OF SAID CUTTING MEANS WITH THE CONTINUOUS MOVEMENT ALONG SAID RAILS OF SAID BAKING PANS WHEREBY DIFFERENT SIZES OF BAKING PANS MAY BE FILLED WITH PROPERLY SPACED SEVERED DOUGH PIECES. 